CN208569018U - A kind of dispersive line earth detector concatenating current transformer - Google Patents
A kind of dispersive line earth detector concatenating current transformer Download PDFInfo
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- CN208569018U CN208569018U CN201820941260.2U CN201820941260U CN208569018U CN 208569018 U CN208569018 U CN 208569018U CN 201820941260 U CN201820941260 U CN 201820941260U CN 208569018 U CN208569018 U CN 208569018U
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Abstract
The utility model relates to disclose a kind of dispersive line earth detector for concatenating current transformer, it includes: three-phase air switch, synchronous vector matching current mutual inductor, tripping coil composition, it is characterized by: the three-phase air switch has the switch of tripping protection coil using known standard, the synchronization vector matching current mutual inductor is in such a way that number of inductive coil turns secondary on the basis of normal component halves, both it is convenient mating with other standard devices to be concatenated the same set of standard current transformer for two groups of secondary induction coils, purpose is in the installation of three-phase and four-line electroplax, three-phase power line is all separated by a certain distance with most of between zero curve connecting terminal block, single group current transformer is caused to penetrate three-phase and four-line extremely inconvenient, the tripping coil is generated by the synchronization vector matching current mutual inductor for penetrating three-phase and change Electric current vector and, by circuit controling switch promote electric leakage tripping protection.
Description
Technical field
The utility model relates to detect the device industry field of electric leakage in three-phase and four-line route, specially a kind of concatenation electric current
The dispersive line earth detector of mutual inductor.
Background technique
The device of electric leakage is detected in currently known three-phase and four-line route, middle-size and small-size automatic air-break switch is used and is internally integrated
Mode, three-phase and four-line aggregation detects its electric current vector by current transformer together and high-power automatic air-break switch is due to zero
The simple setting connecting terminal block of line is connected for multiple groups change, causes one group of change far from three-phase phase line, mutual with one group of electric current
The mode that sensor completes to penetrate measurement is extremely difficult, and has partial line routing in excessively thick really up to the mark and be separated by a certain distance and cause zero curve
It penetrates and is unable to complete and is forced to change zero curve placement position, the layout switched for DATA REASONING and electroplax causes very big inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of dispersive line earth detectors for concatenating current transformer, with solution
Certainly the problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions: a kind of discrete lines concatenating current transformer
Road earth detector, it includes: automatic air-break switch, zero curve connecting terminal block, synchronizes vector matching current mutual inductor I, is same
Walk vector matching current mutual inductor II, electrical appliance, tripping control circuit, tripping protection coil, electric current vector and detection switch, its
Be characterized in that: the three-phase air switch belongs to all kinds of three-phase air switches with tripping protection coil known in market, is used for
Electric leakage tripping power-off protection, the current transformer use secondary the induction coil number of turns on the basis of standard current transformer to subtract
Half mode coiling manufacture, superposition penetrates main line after both two groups of secondary induction coils of synchronous vector matching current mutual inductor are concatenated
The current values that the same set of Current Transformer Secondary induction coil generates afterwards, current transformer normalized current well known to market are mutual
Sensor is used using such as 100A/5A, 200A/5A, that is, NA/4A electric current no-load voltage ratio mode, synchronous vector matching current mutual inductor
Be the electric current no-load voltage ratio mode of NA/2.5A the purpose of be that electric current no-load voltage ratio parameter after two groups of concatenations is identical to standard current transformer
Parameter, the convenient use with mating setting, both in the circuit that one group of standard current transformer is the detection electric leakage of standard three-phase and four-line
It is middle to wear three-phase phase line and zero curve use respectively with two groups of synchronous vector matching current mutual inductors, facilitate corresponding and other standard devices
It matches, is identical to one group of standard current transformer being divided into two groups of uses, the purpose is to three-phase and four-line switch electroplaxs
In powerful distribution board in actual installation, three-phase power line is the same as most of all at a distance of a spacing between zero curve connecting terminal block
From causing single group current transformer to penetrate three-phase and four-line extremely inconvenient, solve partial line routing in excessively thick really up to the mark at a distance of certain
Impossible task sometimes is penetrated apart from zero curve, the electrical appliance is the various electrical appliances connected on demand of work electricity utilization site
Tool, the tripping control circuit, tripping protection coil, electric current vector and detection switch protect circuit using the well known leakage in market,
After detection the absolute value of electric current vector sum be greater than zero, and be more than setting corresponding state-set standard safe current value when say
Open-wire line road has formed leakage condition, and wayside control system starting tripping control circuit, tripping protection coil disconnect three-phase air and open
Protection Electrical Safety is closed, the zero curve connecting terminal block is null wire shared connecting terminal block well known to market.
Through the above technical solutions, wearing three-phase phase line and zero curve use respectively by two groups of synchronous vector matching current mutual inductors
A kind of dispersive line earth detector of concatenation current transformer of composition, structure is simple, is easy to match, solves list
Group current transformer penetrates the inconvenience of three-phase and four-line and partial line routing has been penetrated in the excessively thick zero curve really up to the mark that is separated by a certain distance
When the problem of being unable to complete, brought for the layout that DATA REASONING and electroplax switch practical and conveniently.
Preferably, the method that the synchronous vector matching current mutual inductor reduces by a half-coil using standard current transformer
Production.
Through the above technical solutions, purpose is that the secondary electricity for inducing single group halves, two induced after two groups of concatenations
Primary current is identical with the standard current transformer before halving, and two groups of synchronous vector matching current transformer parameters are identical, both will
One group of current transformer splits into two groups of concatenations and uses, and peripheral support circuit is constant in use, realizes the three-phase of different place apart
Phase line and zero curve respectively penetrate the purpose used.
Compared with prior art, the utility model has the beneficial effects that solving single group current transformer penetrates three-phase four
Inconvenience and the partial line routing of line penetrate the problem of being unable to complete sometimes in the excessively thick zero curve really up to the mark that is separated by a certain distance.
Detailed description of the invention
Fig. 1 is the utility model electric system connection schematic diagram.
It is as shown in the figure: 1- three-phase air switch, 2- zero curve connecting terminal block, 3- synchronous vector matching current mutual inductor I, 4-
Synchronous vector matching current mutual inductor II, 5- electrical appliance, 6- tripping control circuit, 7- tripping protection coil, 8- electric current vector and
Detection switch.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Refering to shown in attached drawing, the utility model provides a kind of technical solution: a kind of dispersive line concatenating current transformer
Earth detector, it includes: three-phase air switch 1, zero curve connecting terminal block 2, synchronizes vector matching current mutual inductor I 3, is same
Step vector matching current mutual inductor II 4, electrical appliance 5, tripping control circuit 6, tripping protection coil 7, electric current vector and detection are opened
Close 8 compositions, it is characterised in that: it is empty that the three-phase air switch 1 belongs to all kinds of three-phases with tripping protection coil 7 known in market
Air cock 1, for tripping power-off protection of leaking electricity, the current transformer uses secondary sense on the basis of standard current transformer
The mode coiling for answering wire circle to halve manufactures, both the identical synchronous vector matching current mutual inductor I 3 of two groups of parameters, synchronous mistake
II 42 induction coils of flux matched current transformer respectively penetrate three-phase phase line and the synchronous vector matching current of zero curve after being concatenated
Identical three-phase and four-line wears one group of Current Transformer Secondary induction after mutual inductor I 3, synchronous II 4 main line of vector matching current mutual inductor
The electric current vector and numerical value that coil generates, current transformer standard current transformer well known to existing market is using such as
100A/5A, 200A/5A, that is, NA/4A electric current no-load voltage ratio mode, synchronous vector matching current mutual inductor I 3, synchronous vector matching electricity
Current transformer II 4 using NA/2.5A electric current no-load voltage ratio mode the purpose of be that electric current no-load voltage ratio parameter after two groups of concatenations is identical to
The parameter (wherein N represents road principal current) of standard current transformer, the convenient use with mating setting, both in one group of normalized current
Mutual inductor is in the circuit of standard three-phase and four-line detection electric leakage with two groups of synchronous vector matching current mutual inductors I 3, synchronous vector
Three-phase phase line is worn respectively with current transformer II 4 and zero curve uses, and facilitates correspondence to match with other standard devices, concatenation side
Formula S2It is shorted L1Lead-out wire S after concatenation1、L2Lead, for protecting coil 7, electric current to lose by the tripping in tripping control circuit 6
Amount and the detection of detection switch 8 generate faradic vector sum, and control tripping protection coil 7 manipulates the disconnected of three-phase air switch 1
Road protection, is identical to one group of standard current transformer being divided into two groups of uses, and the purpose is to the realities of three-phase and four-line switch electroplax
In powerful distribution board in the installation of border, three-phase power line is the same as most of all at a distance of a spacing between zero curve connecting terminal block
From causing single group current transformer to penetrate, three-phase and four-line is extremely inconvenient, and the routing of solution partial line is in excessively thick really up to the mark at a distance of a spacing
Impossible task sometimes is penetrated from zero curve, the electrical appliance 5 is the various electrical appliances connected on demand of work electricity utilization site
Tool, the tripping control circuit 6, tripping protection coil 7, electric current vector and detection switch 8 protect electricity using the well known leakage in market
Road, after detection the absolute value of electric current vector sum be greater than zero, and be more than setting corresponding state-set standard safe current value when
Illustrate that route has formed leakage condition, wayside control system starting tripping control circuit 6, the tripping protection disconnection three-phase of coil 7 are empty
Air cock 1 protects the safety of electric consumer, and the zero curve connecting terminal block 2 is null wire shared connecting terminal block well known to market.
Through the above technical solutions, purpose is that the secondary electricity for inducing single group halves, two induced after two groups of concatenations
Primary current is identical with the standard current transformer before halving, and one group of current transformer is both split into two groups of concatenations and is used, is used
Middle periphery support circuit is constant, realizes different place three-phase phase line apart and zero curve respectively penetrates the purpose used.
Further, the identical synchronous vector matching current mutual inductor I 3 of the parameter, synchronous vector matching current mutual inductor
II 4 be that the method for being reduced by a half-coil using standard current transformer is made.
Through the above technical solutions, purpose is that the secondary electricity for inducing single group halves, two induced after two groups of concatenations
Primary current is identical with the standard current transformer before halving, and two groups of synchronous vector matching current mutual inductors I 3, synchronous vector
It is identical with II 4 parameter of current transformer, one group of current transformer is both split into two groups of concatenations and is used, peripheral matched electricity in use
Road is constant, realizes different place three-phase phase line apart and zero curve respectively penetrates the purpose used.
Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple easy for installation practical,
Solve that single group current transformer penetrates the inconvenience of three-phase and four-line and partial line routing in excessively thick really up to the mark is separated by a certain distance zero
Line penetrates the problem of being unable to complete sometimes.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (1)
1. a kind of dispersive line earth detector for concatenating current transformer, it includes: that three-phase air switch (1), zero curve connect
Line terminals arrange (2), synchronous vector matching current mutual inductor I (3), synchronous vector matching current mutual inductor II (4), electrical appliance (5),
It threads off control circuit (6), tripping protects coil (7), electric current vector and detection switch (8) to form it is characterized by: described is same
Step vector matching current mutual inductor I (3) penetrates three-phase phase line, and synchronous vector matching current mutual inductor II (4) penetrate zero curve, synchronous
Vector matching current mutual inductor I (3), the secondary induction coil for synchronizing vector matching current mutual inductor II (4) are concatenated for detecting
For starting tripping protection when electric current vector and super safety value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820941260.2U CN208569018U (en) | 2018-06-19 | 2018-06-19 | A kind of dispersive line earth detector concatenating current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820941260.2U CN208569018U (en) | 2018-06-19 | 2018-06-19 | A kind of dispersive line earth detector concatenating current transformer |
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| Publication Number | Publication Date |
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| CN208569018U true CN208569018U (en) | 2019-03-01 |
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| CN201820941260.2U Active CN208569018U (en) | 2018-06-19 | 2018-06-19 | A kind of dispersive line earth detector concatenating current transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702867A (en) * | 2021-08-31 | 2021-11-26 | 国网江苏省电力有限公司营销服务中心 | Electric leakage detection device of series current transformer circuit and use method thereof |
-
2018
- 2018-06-19 CN CN201820941260.2U patent/CN208569018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702867A (en) * | 2021-08-31 | 2021-11-26 | 国网江苏省电力有限公司营销服务中心 | Electric leakage detection device of series current transformer circuit and use method thereof |
| CN113702867B (en) * | 2021-08-31 | 2024-04-12 | 国网江苏省电力有限公司营销服务中心 | Leakage detection device for series connection of current transformer circuits and application method thereof |
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